Choose this combination kit for the reliability of the MatchMates Aneroid Sphygmomanometers and the flexibility of the dual head stethoscope. Each stethoscope features a binaural, lightweight anodized aluminum chest piece, 22in vinyl Y-tubing, spare diaphragm and a pair of mushroom ear tips. Stethoscope, accessories and sphygmomanometers come neatly stored in the matching carrying case. Lifetime calibration warranty. Carrying case: 9in x 5in x 2in.